How to create your own SRT file. The first step in creating a SRT file is to create the transcript for your video. Use the instructions below to create your own SRT file from scratch. Depending on the operating system you use (Mac or Windows PC), the instructions are slightly different. Open a new file in TextEdit. SRT files are commonly used with the DivX and DVD video formats. These SRT files contain the number of the subtitle in the file, the start and end times of when the subtitle appears and up to two lines of the subtitle content. Without the proper SRT files in place, the computer or DVD player is unable to play the subtitles or may play them at the wrong times.
How to Create Custom SRT Files for Video Subtitles by Ana Gotter on Social Media Examiner. What Are SRT Files? SubRip Subtitle files (SRT) are plain-text files that contain subtitle information.